Perhaps you should try some spelling variations:
nhung trung » chuong trung, dung trung, nhung dung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
trung dai » truong dai, truong dao, trung tam
manh cua » doanh cua, ban cua
chan cau » phan cau, can cau, chinh cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - canh manh cua nhung trung dai ((chan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh manh cua nhung trung dai ((chan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh manh cua nhung trung dai ((chan cau) or (phan tu))*.